Raimo Pessa

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Jarvikatu, FI

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement for fastening the grindstone of a pulp grinder to a rot...
- Patent number 5,111,999
- Issue date May 12, 1992
- Oy Tampella AB
- Raimo Pessa
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of and a feeding device for feeding a wood batch into a pres...
- Patent number 4,664,323
- Issue date May 12, 1987
- Oy Tampella AB
- Juhani Ahonen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sealing arrangement for a shutter of a pressure grinder
- Patent number 4,305,590
- Issue date Dec 15, 1981
- Oy Tampella AB
- Pekka Haikkala
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...